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Unable to find service manual for techs to use to fix amplifier

G'day
I bought an XMS503 AV Receiver about 18 months ago, new. Had some problems from the start with the sound cutting out and static would take over. This happened only a couple of times and because of one reason or another, I wasn't able to get the unit back to Strathfield in Hyde Park, Townsville, where I bought it. I haven't used it in about a year and I recently hooked it up and the problem is still there, only it is happening nearly every couple of minutes.
If you press the coaxial button on the remote, or switch it to another unit eg. vcr, then back again and the sound comes back. But after a couple of minutes the sound dissapears and the static comes back!
I put it into a repair shop and they charged me $55 to be able to not fix it. The guy said that he could not find the fault, said the manual volume button was also stuffed and that he needed the service manual or specs for the unit
Strathfield have shut down in Townsville and I have called Head Office and all they say is that their policy is to replace the unit if it is under warranty and if it is not.....too bad! They say there is no-one they know who can obtain the specs the techs need and simply don't want to know about my problem! This unit cost me around $500 and I have hardly used it, and I am not working, so $$$$ are few and far from each other. I was hoping to download the nescessary files but can find no reference for them anywhere. So here I am, writing to you in the hope you are able to give me some advice which will help.
Thanks for your time in reading this
Cheers
Glenn A. Firth

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Posted on Jan 02, 2017

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SOURCE: Receiver shuts down after loud bang

You said Unit is enclosed!! Does that mean it is inside something? Receivers & Amps need to have a clearance above them so air can circulate, otherwise you'll have an overheating problem. You also might have some of your wires crossed which will cause the Amp to shut down. Look at all your connections and make sure they're correct, including speaker wires.

Posted on Sep 23, 2007

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SOURCE: Receiver shuts down after loud bang

No fix to this problem. When my T763 had the same symptoms I left it with the dealer who sent it on to service. It ended up being scrapped. So I'm afraid this is the end of your receiver unless your techies are better than the ones who worked on mine.

Posted on Aug 11, 2009

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